Downton Abbey came bursting back onto screen for Series 3, and already the family, having overcome war and class battles, faced a fresh problem.It all started so well, with the bunting being hung for the glamorous society wedding of Mary and Matthew, and the only real problem the impending arrival of chauffeur/revolutionary/in- law Branson - "a person of fascination for the county". Carson and Co's fears were confirmed, as the dinner ...